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Posted to commits@samza.apache.org by "Navina Ramesh (JIRA)" <ji...@apache.org> on 2017/03/01 20:23:45 UTC
[jira] [Created] (SAMZA-1113) Implement startup and shutdown
sequence of jobs in ZK environment
Navina Ramesh created SAMZA-1113:
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Summary: Implement startup and shutdown sequence of jobs in ZK environment
Key: SAMZA-1113
URL: https://issues.apache.org/jira/browse/SAMZA-1113
Project: Samza
Issue Type: Sub-task
Reporter: Navina Ramesh
Assignee: Navina Ramesh
Problem that we need to solve is: Do we need multiple job attempts in the ZK tree? If yes, who creates the persistent subtrees? There is no leader until the ZK trees are setup.
In the initial prototype, the first processor instance creates the ZK hierarchy. If we were to support multiple job attempts, then we need different ZK trees for each attempt. How do all the processors within a job know which the attempt ID to join?
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